Separable fastener



July 10, 1928. 1,676,396

' C. KRANZ SE:PAR1\.BI..E FASTENER Filed Jgn. 27, 1928 Patented l"July l, 1.928.

CLARA ANZ, F CHICAGO, ILLINOIS.

SEPARABLE rasrnnnn.

Application led January 27, 1928. Serial No. 249,783.-

This invention relates to separable fasteners and its principal object is Vto kprovide means for preventing the slider or sliding cam from accidentally slipping down along .the jaws of the separable fasteners and permitting them toVv become unfastened. `The invention has been designed especially for use in connection with separable fasteners j of gaiters, and the like, where the tendency l!) for the slider or sliding cam to slip or slide down along the jaws is particularly noticeable. However, its 'use is not limited to gaiters, and the like, but it may be used wherever found applicable.

Another object is to provide a simple, in

expensive and practical locking device cay' pable of being applied to separable fasteners,

now on the market, and with said objects and advantagesA in view this invention consists in fa securing or retaining member arranged for engagement with the usual stringers upon which the jaws of separable fasteners are secured, whereby the slider is prevented from accidentally slipping down along the jaws. It further consistsin the several novel features hereinafter fully set forth andclaimed.

The invention is clearlyfillustrated in the accompanying drawing, in which:

Figure 1 is a perspective view of a sepa-l rable fastener, embodying a simple form of the present invention;

Fig. 2 is a fragmental front elevation of the device;

Fig. 3 is a side elevation of the slider, the tab and the retaining device detached from the remainder of the separable fastener;

Fig. 4 is a 2; and

Fig.' 5 is a perspective view of the retainingmember, looking at the rear side thereof.

eferring to said drawing, which illustrates a simple embodiment of the present invention, the referencev character 6 designates ,a gaiter, overshoe, or the like, of conventiona construction, provided with the usual co-acting locking jaws 7, ofa well known separable fastener. As usual, the jaws are secured to stringers .8, 'ordinarily' formed of woven tape secured: to the opposite Vedges that define the opening at the instep. The jaws 7 are formed with the lusual locking projections or lugs that enter plan of the parts seen in Fig.

vor finger piece 10 is connected to the slider 9 by a loop 11, fastened to the vslider and 05 extending through a hole inthe tab. The tab furnishes a convenient finger piece which is taken hold of in sliding the slider up or down along the jaws.

' The parts thus far described comprise 7 a common and well known separable fastener A particular objection. to separable fasteners of this type Ais the tendency for the slider to slip down along the jaws pelmitting the jaws to unfasten above it. The ordinary bending action of the foot on the gaiter, especially has a tendency to cause 4the slider to slip down along the jaws, thereby releasing them to-beconie opened.

To overcome this objectionable feature; I provide a securing' device upon the tab or finger piece, which device engages with the stringers of the separable fastener in such manner that the sliderv is prevented from accidentally sliding down along the jaws. In the simple form of the invention shown, the tab is" provided with a pair of wings 12 which project laterally from the side edges of the tab and are adapted to en- 90 gage the stringers from behind. The wings are offset rearwards slightly, whereby the edges ofthe stringers may engage the transverse parts 13 of the offset wings. It is understood by those skilled in the art to which this invention pertains, that the edges of the stringers immediately above the Y- shaped slider divergev and the offset parts 13 of the wings engage in the crotch thus formed, and to all intents and purposes belo@ and `allowing the gaiter Y Acornes wedged slightly therein, thereby supporting the slider by the loop 11 and eRectively preventing it from slipping down (n along the aws. 'i

Inj use, t e slider is drawn upwards by the ma tab to lock the jaws together, after which i the wings are inserted behind the stringers as shown. To unlock the jaws, the wings of the tab are disconnected troni the stringers and the slider moved down by drawing the tab down as usual.

The oll'set wings are shown as formed upon a separate piece or strip 14, spot welded, brazedy soldered7 riveted, or otherwise secured to the tab. This is nierely one forni of the construction coiiteniplated, as the tab and Wings may be made ot one piece ol metal, either cast or struck np with suitable dies. lt L'nay be made ot suitable nia terial other than nietal, and may be given any suitable torni or shape designed to effectively engage with the stringers or adjacent parts ot' the separable fastener for the purpose el retaining or securing it in place when raised to its locking position for the slider. rlhe otl'lset parts lll of the Wings may orrn a Wedge-like nieinber entering the crotch toi-ined between the stringers above the slider and engaging with said edges.

lllore less variation of the exact details oit construction is possible without departing;` l'roin the spirit ot this invention; l desire therefore, not to limit myself to the exact :form oli' the eonstrnction shown and described? but intend in the 'following claims to point ont all et the invention disclosed herein.

l claim as new, and desire to secure by Letters Patei'it:

l. ln a separable fastener having stringers, coacting looking jaws thereon, and a slider, slinably mounted on said jaws, a Finger piece loosely connected to said slider and having a pair of laterally projecting rearwardly olllset wings adapted to engage the edges ot the stringere and behind the edge portions.

2. ln a separable fastener having stringers, coacting locking jaws thereon, and a slider, Slidably mounted on said jaws, a tab, a loop on said slider and extending through a hole in the tab, and laterally projecting, offset Wings on said tab adapted to engage behind said stringers.

3. A linger piece tor sliders of separable fasteners comprising a tab having a pair of otlset laterally projecting wings adapted to engage behind the stringere ot' separable fasteners.

Ll. linger piece 'for sliders of separable fasteners? comprisingv a tab connected to the slider, and formed with a pair of laterally extending, rearwardly oll'set wings adapted to engage behind the stringers of separable fasteners.

5. linger piene tor sliders of separable fasteners, comprising tab loosely connecl'ed to the slider and formed with a pair of laterally extending` rearwardly ollset wedge like wings adapted to engage the edge portions ot the stringers of separable fasteir ers.

6. A linger piece for sliders oit separable fasteners, comprising a tab loosely connected to the slider, and a pair of laterally ero tending rearwardly o'll'set Wings secured to said tab and adapted to engage behind the stringers of separable fasteners.

CLARA. nanna. 

